Planer



Feb. 2 1926. 1,571,449

J. KANDERA,

PLANER v Filed Dec. 2, 1924 2 Sheets-Sheet 1" INVENTO Z M A TTORNEY Feb.- 2 ,1926. 1,571,449

. J. KANDERA rung:

Filed Dec. 2, 1924 2 Sheets-Sheet 2 ATTORNEY Patented Feb. 2, i926.

iTOI-I'N KANDERA, O' F NEW YORK, N. Y.

rL-A-Nnn.

Application .filed December '2, 192.4. .SerialNo. #553,441.

To all whom it may concern:

Be it known that I, JOHN KANDEnA, a citizen of the United States, and resident of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Planers, of which the following is a specification.

The present invention relates to improve ments in wood planers or planing machines. The invention pertains more particularly to portable surface-treating machine for planing the wooden blocks employed in cutting machines, such as for instance leather cutting machines.

The main ob ect of the invention is to frame. in any desired position, thereby enabling the operator to shift the motor unit along the entire length or width of the wooden 'block to be treated.

\Vith these and other objects in view, which will more fully appear as the nature of. the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claims, without departingfrom the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation, partly in section, of the improved planing machine; Fig. 2 is a section taken on line 22 of Fig. 1; Fig. 3 is a side elevation of a portion of a leather cutting machine with the planing device in position thereon; Fig. 4 is a side elevation of the cutting tool; and Fig. 5 is a top plan view thereof.

The device comprises a rail 10, from the rear face of which projects outwardly a plurality of sets of lugs 11, the members of each set being in alignment, as clearly shown in Fig. 1 of the drawings. Through the upper one of each set of lugs extends a screwthreaded "hole 12, in engagement with a set screw 13, which is adapted to 'be screwed against .alledgelSo-n the tool support 16 of 0 a cutting machine, the said tool support being oscillatably-mounted ona column 17, rising from "the frame 18 of the cutting machine. On this frame isprovided a table portion '19, on which is disposed a wooden- 5 block 20, 'held' in place in any suitable man-' ner. Onto this fblock is placed the work, that is to saya plurality of layers of'leather to be cut. according to the pattern or design desired. On the front 'face of the rail '10 is provided a dovetailed rib 2:1, with which are adapted to co-operate an upper jaw 22 and a'lower jaw 23, provided with registering bores .24 and 25, respectively. The jaw 22 has mounted thereon two vertical pins 26, which-extend slidably through openings 27in thelower jaw. The 'lower portion of thelbore 253s somewhat reduced in diameter and provided with screw-threads 28, in mesh with-threads 29zon the lower reduced end of .80 a cylindrical bearing 30, extending loosely through the bore of the jaw 22 and also through the upper portion of the bore of the'jaw 23. This bearing is fixed or made integral with the. housing'31 of an electric motor, extending vertically, its armature shaft 32 having fixed to it in any suitable manner, below the jaw 23, a cutting tool33, the construction of whichwill be described hereinafter.

On the bearing 30 is formed a gear 34, adapted to mesh with a pinion 35, that is oscillatably'mounted upon a spindle 36, the latter being 'fiXed'to the jaw 22. The pinion is provided with a handle 37 projecting beyond the jaws, for turning the said pinion in one or the other direction, according to the requirements.

The cutting tool 33 may be of any desired construction. In the case illustrated it comprises a block 38, through which extends a screw-threaded bore 39, its threads meshing with those of the armature shaft.

A screw 40* is provided for preventingdisengagement of the tool from the said shaft. The block 38 has two oppositely extending arms 41, to each of which is fixed, by a screw 42, a blade 43. This blade is of quadrangular configuration, having cutting edges 44 all around so that, when one edge is 1 dulled, the tool may be shifted 90 around its screw 42, presenting thereby a sharp edge for further operation of the tool. The blades extend at angles to the longitudinal axis of the armature shaft, as usual in devices of this type.

In using the planing machine, the rail 10 and the elements carried thereby are attached to the ledge 15 of the cutting machine. lVhen the elements are in thepositions shown in the several figures of the drawings, the jaws 22 and 23 clamp the motor and the cutting tool to the rail 10, so that, when the tool support 16 is shifted to bring the cutting edges of the blades 43 into engagement with the wooden block 20 and the motor is started, the upper surface of the said wooden block is planed. If the blades do not cut deep enough, the tool support 16 must, obviously, be lowered. If it is cutting too deep or acting too severely on the surface, the tool support is raised. The operator shifts the electric motor over the entire length of the wooden block, clamping the same always in position. In order to release the motor to permit the same to be shifted on the rail 10, the handle 37 is shifted in the direction of the arrow shown in Fig. 2 of the drawings, whereby the motor housing 31 and the bearing 30 are, through the intermediary of the pinion 35 and gear 34,,turned through an angular distance corresponding to the movement of the handle 37. Inasmuch as the lower jaw 23 is prevented from moving with the bearing 30, it is shifted longitudinally downwards thereon, the screw threads in its bore being in mesh with those on the said bearing. In

other words, the lower jaw recedes from the upper jaw, whereby the motor and the parts connected therewith are adapted to be shifted on the rail 10. After these parts are shifted to the desired positions, the handle 37 is moved in a direction opposite that indicated by the arrow shown in Fig. 2 of the drawings, whereby the lower jaw 23 is caused to move toward the jaw 22, that is to say into clamping position. By moving the tool support 16 about the column 17,

obviously the entire surface of the wooden block can be treated.

After the wooden block has been planed as above described, the rail 10 and the elements carried thereby are detached from the cutting machine.

It is obvious that, while herein the device has been described as being attached to a cutting machine, it may be secured to any suitable support in operative relation to the surface to be treated.

WVhat I claim is 1. A portable surface treating machine comprising a rail, two clamping jaws shift-- able longitudinally on said rail, an electric motor having a bearing member extending oscillatably through said jaws, the outer end of said bearing member being provided with screw-threads in mesh with threads on one of said jaws, a cutting tool associated with said motor disposed beyond said jaws, and coacting means on said bearing member and one of said jaws for oscillating said bearing member and thereby causing said screw-threaded clamping jaw to move toward or recede from the other one of said clamping jaws.

2.'A portable surface treating machine comprising a rail, two clamping'jaws shiftable. longitudinally on said rail, an electric motor having a bearing member extending oscillatably through said jaws, the outer end of said bearing member being provided with screw-threads in mesh with threads on one of said jaws, a cutting tool associated with said motor disposed beyond said jaws, a gear on said bearing member, a pinion oscillatably mounted on one of said clamping jaws, and a handle fixed to said pinion for oscillating the same and thereby causing said screw-threaded clamping jaw to move toward or recede from the other one of said clamping jaws.

Signed at New New York, and State of New York, this 20th day of September, A. D. 1924.

. JOHN KANDERA.

York, in the county of 

